I'm in the 'Lost & found' sequence in a memory (6 I believe) where I'm in some cistern, looking for keys that some guards posses. For full sync, the game asks you not to get detected. I usually get detected because I unlock nearby chests & don't kill everyone. I wanted to ask whether these chests contain anything special like some rewards or just money & items like bombs & knives. If it's these items, then I can just forget a few chests & move on.